Suspenseful Third Day
- The Extra difficulty chart is unlocked by selecting the scroll on the piano in the Piano Room after reaching 30m Tree Height in playthrough 2 onwards (requires Forgotten Hourglass).
- Altale was released on Deemo as part of a collaboration project between CHUNITHM and Deemo.
- The Extra chart consists solely of small notes, as evidenced by the difficulty level (S for small).
- The Extra chart also features a triple slide.